baber/WOPTO huggingface dataset:
Patent GB-1459861-A (GB)
Title: Process for 11a-dehalogenation of 11a-halotetracyclines
IPC: C07C231/12
Filed: 1974-01-02
Abstract: 1459861 6 - Demethyl - 6 - deoxy - 6 - methyllenetetracyclines PFIZER Inc 2 Jan 1974 [21 June 1973] 00106/74 Heading C2C 6 - Demethyl - 6 - deoxy - 6 - methylenetetracyclines are prepared by contacting an 11ahalo - 6 - demethyl - 6 - deoxy - 6 - methylenetetracycline with at least an equimolar amount of a secondary or tertiary phosphine or a tertiary phosphite in a reaction-inert solvent to effect 11a-dehalogenation.
Patent GB-224753-A (GB)
Title: Improvements in and relating to atomizers for liquid fuel burners and the like
IPC: F23D11/38
Filed: 1924-01-02
Abstract: 224,753. Erickson, D. E. Jan. 2, 1924. Spray burners.-In order to render incorrect assembly impossible, the atomizer disc A of a liquid-fuel spray burner is formed with whirling chambers c, c<1> in both its upper and lower surfaces, and the chambers c, c<1> are connected by channels d, d<1> to a groove b in its periphery. The channels d, d<1> are tangential to the walls or to surfaces parallel to the walls of the chambers c, c<1> respectively. The disc A and an apertured plate i are secured by a nut l in a recessed head f.
Patent GB-869875-A (GB)
Title: Improvements in or relating to electrical primary cells
IPC: H01M6/08
Filed: 1960-01-01
Abstract: 869,875. Batteries. PERTRIX-UNION G.m.b.H. Jan. 1, 1960 [Jan. 22, 1959], No. 141/60. Class 53. A primary cell having a zinc cup b enclosing a depolarizer d and carbon rod s is provided with a centring device for the positive electrode comprising an insulating shell c from the cover of which depends a tube r fitting over the carbon rod. The tube r abuts against the depolarizer d and may be further supported by radial ribs extending from the tube to the inner surface of the zinc cup and pressed against the upper surface of the depolarizer.
Patent GB-488219-A (GB)
Title: Improvements in and relating to controllers for electric motor equipments
IPC: H01H9/26
Filed: 1937-01-04
Abstract: 488,219. Actuating controllers. GRAY, W. T., and METROPOLITAN - VICKERS ELECTRICAL CO., Ltd. Jan. 4, 1937, No. 242. [Class 38 (iii)] A controller of the kind in which the operator performs an additional control operation before initiating acceleration in order to obtain acceleration to the higher speed or speeds, comprises an abutment 23 coupled with the moving element of the controller and co-operating with an abutment 18 biassed into the path of movement of the member 23 and preventing movement of the controller to its final position, a locking member 14 coupled to the moving element of the controller having a surface interrupted at 15 which co-operates with an auxiliary control member to permit operation of the abutment 18 into and out of the path of movement of the abutment 23 by the biassing means and the auxiliary control member respectively, when the controller occupies its off position. The main controller is operated by a handle 1 and the auxiliary control member comprises a thumb lever 5 coupled to an auxiliary shaft 6, the shaft being biassed by a spring 9 acting in compression and torsion. With the thumb lever in the position shown, operation of the controller is limited to its third notch by engagement of the curved face of the abutment 23 with the abutment 13 as shown in Fig. 5. Since operation of the controller moves the recess 15 of the disc 14 out of line with the abutment 18 depression of the lever 5 is prevented. While the controller handle 1 is in its off position the lever 5 may be depressed to operate the abutment 18 to the underside of the disc 14 so that the controller may be operated, the disc 14 retaining the abutment 18 in its depressed position, until a further abutment 24 carried on the underside of the disc 14 engages the abutment 18. Thus the controller may be operated to its fourth notch. While the controller is in its off position the lever 5 may be depressed and rotated as shown in Fig. 6, so that the abutment 18 is situated below the disc 14, but with a surface 16 engaging the edge of the disc 14 when the controller is rotated. In this way the abutment 18 is retained in a position out of the path of the abutments 23, 24, and the controller may be operated to its final notch. The lever 5 and the abutment 18 are returned to the normal position shown from either of its actuated positions when the controller is in its off position by the spring 9.
Patent GB-438400-A (GB)
Title: Improvements in or relating to refrigerating lids or closures for vacuum-jacketed vessels
IPC: A47J41/00
Filed: 1935-01-03
Abstract: 438,400. Receptacles for cooling. THERMOS (1925), Ltd., and MARTIN, W., 1, Fountayne Road, Broad Lane, Tottenham, London. Jan. 3, 1935, No. 246. [Class 29] A plug lid for vacuumjacketed refrigerating vessels comprises two superposed closed receptacles 1, 6, the lower being adapted to contain the refrigerant, such as solid carbon dioxide or a freezing mixture, and the upper to contain asbestos wool or other insulation, the receptacles being separated by one or more dividing walls and both being located wholly within the bore of the vessel and preferably supported by a flange on the cover 9 of the upper receptacle. In the form shown in Fig. 1, the lower receptacle has a dished bottom 3 with lugs 4 for supporting the lid upright when out of use, and is connected by a screw-thread 7 with the upper receptacle. The receptacles may be made of a phonolic condensation product, and may be supported from the detachable cover 9 by a rod 10 moulded into a boss 11 on the base of the upper vessel and engaged by a screwed knob 12. In the form shown in Fig. 2, the receptacles are spaced apart by a boss 17 on the base of the upper receptacle, the supporting rod passing through this boss and engaging a boss on the cover 14 of the lower receptacle.
Patent GB-944009-A (GB)
Title: Improvements in or relating to the deposition of silicon on a tantalum article
Inventor: BALDREY JOHN ARTHUR
IPC: C23C8/80
Filed: 1960-01-04
Abstract: In a process for depositing silicon on a tantalum article the article is first heated in a nitriding or oxidizing atmosphere to a temperature below the melting point of tantalum for a time sufficient for a layer of nitride or oxide to be formed on the surface, and then heated in a silicon-depositing atmosphere to deposit silicon on the nitride or oxide surface.  Nitriding may be effected by heating above 900  DEG C. in nitrogen, a mixture of nitrogen and hydrogen, or ammonia.  Oxidizing may be effected by heating above 700  DEG C. in air, oxygen, or a mixture of oxygen and inert gas. The silicon-depositing atmosphere may consist of a silicon-hydrogen or halogenated silicon-hydrogen compound, optionally together with hydrogen and/or an inert gas. Specified silicon compounds are SiH4, SiH3Cl, SiH2Cl2, SiHCl3, SiCl4 and SiI4. After deposition, the tantalum may be removed by dissolution in hydrofluoric acid to leave a purely silicon article.  Thus a silicon rod with a central bore may be produced by coating a tantalum tube.  Reference is also made to the production of a silicon radome.
Patent GB-740111-A (GB)
Title: Improvements in apparatus for purifying steam
IPC: B01D45/12
Filed: 1954-01-05
Abstract: 740,111. Steam boiler steam and water drums; steam separators. BABCOCK & WILCOX, Ltd. Jan. 5, 1954 [Jan. 6, 1953], No. 291/54. Classes 123(2) and 123(3). In a high-pressure water-tube boiler, contaminants such as silica are removed from the steam by purifying apparatus located in the steam and water drum 10, the steam-water mixture from the generating tubes 11 entering a collecting chamber 14 in the drum and flowing therefrom through guide ducts 21 which lead the steam tangentially into separators 22 of the centrifugal type, for example as described in Specification 562,793. The bulk of the water separates from the steam in the separators and flows into the main body of water in the drum through openings 23. The steam flows upwardly in each separator through a perforated plate 26 and then into and through a scrubber 30 which consists of a number of closely spaced corrugated plates 31 the surfaces of which are covered with a moving film of pure wash water, for example, condensate, which is supplied from an external source via a pipe 42, a reservoir 41 and serrated distributer plate 54. The contaminants in the steam are absorbed by the wash water, the clean steam passing into a space 65 which is separated from the steam space 66 of the drum by plates 60, 61 and 62 so that admixture of impure steam from space 66 with the clean steam is prevented. The clean steam discharges through outlet pipes 12. To allow the steam space 65 to be vented when the safety valves, which are attached to pipes 67 located at the ends of the drum and communicating with space 66, open, a water seal, which breaks when the valves open, is provided between the spaces, the seal consisting of a trough 55 receiving the wash water draining from scrubber 30 and into which dips the lower edge of plate 62. Specification 726,970 also is referred to.
Patent GB-953260-A (GB)
Title: Air-breathing solid propellant ducted rocket
Inventor: WIGGINS JOSEPH WADE
IPC: F02K7/10
Filed: 1961-01-04
Abstract: 953,260. Self-propelled missiles. THIOKOL CHEMICAL CORPORATION. Jan. 4, 1961, No. 432/61. Heading F3A. In a solid propellant rocket the casing incorporates an air intake so as to introduce atmospheric air into the combustion space. As shown, Fig. 1, the rocket casing 11 contains the propellant charge 12, the gases from which are directed by nozzle 13 into the combustion chamber 14. The ducts 15 lead air into 14 to complete the combustion of the gases prior to discharge through nozzle 16. In the second embodiment, Fig. 3, the rocket is first accelerated by the high-thrust propellant 37. After a predetermined time, the charge 33 is ignited and the bulkhead 38 is burned. The partially oxidized gases from 33 are mixed with air supplied through duct 36 to produce further combustion in the space occupied by 37 and are then emitted through nozzle 39. In the third embodiment, Fig. 4, the oxidant rich propellant 43 first accelerates the rocket. Then, partial combustion of propellant 49 supplies fuel rich gas to the combustion chamber 47 where further burning occurs, with air supplied through duct 45, before discharge through 48. Organic polymer or copolymer fuels in conjunction with ammonium perchlorate or a nitrate salt as an oxidizer are used.
Patent GB-740112-A (GB)
Title: Improvements in shock absorbers and dampers
IPC: F16F9/06
Filed: 1954-01-07
Abstract: 740,112. Hydraulic shock absorbers. CAUSSE, A. R. Jan. 7, 1954 [Jan. 10, 1953], No. 474/54. Class 108 (3). A hydraulic shock absorber comprises a piston 1, displaceable in a cylinder 6, and carrying on its side remote from its piston rod 8, a hollow bell - shaped extension 9 filled with air or a gas. As shown, the extension 9 is closed by a piston 3. In operation, on compression, entry of the piston rod 8 into the cylinder, displaces oil which deflects the partition 3 upwardly, compressing air in the chamber 2. The latter may contain a spongy material or a spring. The chamber 2 and partition 3 may be constituted by a bellows. The piston has orifices 7 which may be valved.
Patent GB-1488102-A (GB)
Title: Chord selection system for an electronic musical instrument
IPC: G10H1/34
Filed: 1976-01-07
Abstract: 1488102 Electronic musical instruments C G CONN Ltd 7 Jan 1976 [30 Jan 1975] 00549/76 Heading G5J In an electronic organ arranged for automatic chord playing the keyswitches have two different operated positions in which two different combinations of tones are sounded. In Fig. 5 depression of a key 45 to the position shown causes four of the wire contacts 53 to make with respective bus-bars 32 thus feeding to the bus-bars the root note, the fifth, the major third and the minor third intervals respectively. When the key 45 is depressed fully the fifth contact 53 engages with bus-bar 38 as well. As shown in Fig. 3, the root note and fifth are both fed direct to the output circuit of the organ (when a switch 24 is closed) while the thirds are fed via respective gates 27, 28 only one of which is made conductive by transistor 30. When busbar 38 is contacted transistor 30 changes state and the chord sounded changes from a major to minor chord.
Patent GB-124466-A (GB)
Title: Improved Means for Calculating the Range and Height of Aircraft.
Inventor: MACARTNEY WALTER CREALOCK
IPC: G01C3/10
Filed: 1916-01-13
Abstract: 124,466. Macartney, W. C., and Redpath, R. Jan. 13, 1916. Logarithmic calculators.-An apparatus, intended for use in calculating gunnery data for anti-aircraft defences, enables the expressions a sin gamma / sin(gamma+#), a sin gamma tan # / sin(gamma+#) and a sin gamma sec # / sin(gamma+#) giving respectively the distance in plan, height and range, of an aircraft from a gun station, to be calculated. The angle gamma is set by a handle a upon a circularly divided scale and the angle # by a handle b ; the handle a drives a disk A<5> by worm gearing and the index pointer of the # scale is carried upon a disk A' moving with the disk A<5>, so that, in moving the handle b to bring the observed value of # opposite to the index, the corresponding disk B<5> is turned through an angle (gamma + # ). In the diske A<5>, B<5> are cut cam grooves which transmit to roller pins G<1>, H<1> carried by rack-carrying bars G, H movements proportional to the log. sines of the angles gamma and ( gamma + # ). In the upper part of the apparatus a circular distance scale which is first set with the index C<x> to give the length a and is then fixed by screws F<3> to a disk F<2> which is carried by a pinion in gear with the rack G<2> carried by the bar G. A similar rack H<2>, carried by the bar H drives a disk C<3> to which is secured a washer C<4>; this has a tubular extension C' which drives through a dog-clutch C<7> a tubular extension of the disk C<9> which carries the index C<x>, thus copying and reversing the movements of the disk C<3>. A handle d drives through a worm-wheel d<2> and dog-clutches d<3> a disk D<2> carrying a tan # pointer and a disk D' carrying a height pointer, so that the combined effect is to move the pointer C<x> or the height scale by an amount representing log sin gamma + log tan # - long sin (gamma + #) and therefore the height of the target. To indicate the range, a handle e drives through worm gearing and pinions e<3>, e<4> two rings E<2>, E', the former of which carries a log. sec. scale and the latter of which surrounds the disk F<2> and carries a range index E'.
Patent GB-1499459-A (GB)
Title: Feeding device for high speed nut formers
IPC: B21K1/64
Filed: 1976-01-08
Abstract: 1499459 Feeding workpieces in forging apparatus YUAN HO LEE 8 Jan 1976 00695/76 Heading B3H Means for feeding workpieces 60 between successive dies 30, 31, 32 of a high speed nut forming machine comprises parallel guide plates 40, 40 defining a feed path 41 for the workpieces, the axis of the path intersecting the axes of the dies, a feed plate 21 having an edge 211 formed with equally spaced indentations 212, the interval between successive indentations being a fraction of the interval between successive dies, and means for imparting to the feed plate an alternately linear and arcuate reciprocating motion which moves it into the path 41 to engage the workpieces 60 in the indentations 212, moves the workpieces along the path and then releases the workpieces and moves away from the path. The feed plate is actuated by a pivoted lever 20 which makes four advancing strokes in transferring a workpiece from one die to the next and swings clear of the lower guide plate 40 on its arcuate return stroke. Alternatively the plate 21 may be mounted in a slot in the lower guide plate or it may slide on the surface of the plate, remaining in contact with it all the time, Figs. 3, 4 (not shown).
Patent GB-284279-A (GB)
Title: Improvements in or relating to nip mechanism and controlling apparatus relating thereto in combers for textile fibres
IPC: D01G19/16
Filed: 1928-01-09
Abstract: 284,279. Schleifer, C. Jan. 27, 1927, [Convention date]. Combing-machines.-In combing-machines of the type described in Specifications 118,833 and 163,332 the nipper mechanism comprises one jaw 3, Fig. 2, mounted to move about the axis 10 and normally pressed against a stop 9<1> by springs 11. The other jaw 4 is also mounted on the axis 10 and is controlled by a cam 12 on a spindle 13 operated at the requisite times by a cam 18, Fig. 5, engaging a bowl 17<1> on an arm 17 on the spindle. The cam 12, which positively controls both the opening and the closing of the jaws, engages a bowl 4<11> on an extension on the arm 4<1> carrying the jaw 4, and comprises flanks 12<1> and a concentric part 12<11>, which when in engagement with the bowl locks the jaw 4 against the jaw 3, which has been pressed away from the stop 9<1>. A slotted link 14 on the bowl engages a pin 15 on the cam. The jaws 4 of opposite pairs are connected by a link 16<1> passing through a hole in the central shaft 2 so that when one pair of jaws is closed to grip a tuft of fibre, the opposite pair is open to release a tuft for transfer.
Patent GB-283472-A (GB)
Title: Process and apparatus for treating liquids with ultra-violet rays
IPC: A23C3/07
Filed: 1928-01-09
Abstract: 283,472. Scholl, H. Jan. 7, 1927, [Convention date]. Radiations, treating substances with. -In a process for irradiating liquids by ultra-violet rays, air is expelled from the liquid by a stream of gas which may be inactive or have properties which are useful in the product. The gas is used as a means for transporting the liquid through the irradiation apparatus. In the apparatus shown in Fig. 5, liquid contained in vessels 22, 24 is alternately deprived of air in solution by a current of gas passed through gas inlets 26, 27, and transferred to am irradiation vessel 19 by gas pressure supplied through inlets 28, 29 and derived in each case from a vessel 25 containing carbon dioxide. During the passage of carbon dioxide through the liquid, outlets 30, 31 are connected to the air through an exhaust valve 37. The liquid in the receptacles is replenished from a tank 20. The controlling va.lves 35 - - 38 are arranged so that the sequence of operations. takes place in regard to each of the vessels 22, 24 alternately. In a modification, one such vessel only is employed. The irradiation device proper comprises a chamber 1 formed by frames 2 secured to the face of a cooling jacket 3 which is closed by a thin metal diaphragm 5, in some cases of corrugated form to produce eddies: The face of the chamber 1 directed towards the lamp 6 is formed by a quartz window, 7 which may be curved as shown in Fig. 4.
Patent GB-1154432-A (GB)
Title: Radiation Detecting Systems
Inventor: HYUN KYUNG HO
IPC: G01T7/02
Filed: 1967-01-06
Abstract: 1,154,432. Monitoring radio-active gas. ENGLISH ELECTRIC CO. Ltd. Jan.5, 1968 [Jan. 6, 1967], No.847/67. Heading G1A. A chamber in which radio-active gas such as carbon dioxide coolant from a nuclear reactor which may contain xenon and Krypton is monitored for gamma radiation includes an electrode 29 which is negatively charged to attract positive ions arising from the decay of gaseous isotopes, and thus prevents the build up of contamination. Gas flow passages 16, 15 are provided and the radiation is collimated by a duct 22 on to a scintillation counter 25. A clean coolant gas is injected into the chamber through a pipe 27, and is deflected by an electrically earthed plate 28 to keep the area around the collimator free from contamination. Electrostatic filters, and delay lines wherein elements of short half lives may decay, are included in the line carrying the gas being monitored. A high voltage for electrode 29 is exemplified and insulating arrangements are described.
Patent GB-1570573-A (GB)
Title: Process for preparing a laminated food product
IPC: A23L11/00
Filed: 1978-01-10
Abstract: The product is composed of a multitude of superposed coherent films welded together at least partially and composed of agglutinated fragments of fruits, vegetables and/or cereals. Such a product, particularly based on potatoes, lends itself to the preparation of rissoles or lasagnas.
Patent GB-156784-A (GB)
Title: Motor-operated firearm
IPC: F41A3/50
Filed: 1921-01-07
Abstract: 156,784. Kopal, W., and Sachsel, S., (Assignees of Gebauer, F.). June 18, 1917, [Convention date]. No Patent granted (Sealing fee not paid). Machine guns; fire between aircraft propeller blades, synchronizing.-Relates to motor-operated machine guns, particularly those used on aircraft for firing between the propeller blades, and consists in slidably mounting the breech-block 5, Fig. 2, on a firing pin 6 which is reciprocated by means such as a connecting-rod 3 and crank 4, Fig. 1, connected to the motor-driven shaft. The breech-block and firing pin move forwards together to load the gun and close the breech, after which the firing pin continues its forward movement against the action of a spring 9 to fire the cartridge in the chamber o.
Patent GB-1038501-A (GB)
Title: Improvements in rotating filters and methods of separation
IPC: B01D35/26
Filed: 1963-01-08
Abstract: 1,038,501. Centrifugal strainer separators. S. F. WARREN (AJEM LABORATORIES Inc). Jan. 8,1963, No. 865/63. Heading B1D. A method of separating solid particles from suspension in a liquid comprises submerging within the suspension a chamber having a pervious peripheral wall in the form of a surface of revolution, forcing liquid from the suspension into the chamber through the pervious wall, rotating the chamber at a speed sufficient to separate particles from the liquid flowing into the chamber, restricting circumferential flow of the filtrate within the chamber, removing filtrate from the interior of the chamber, and removing particles outside the chamber. As shown, a removable unit is mounted by a plate 20g on a tank 10g and immersed in suspension supplied by a pipe, not shown. The unit includes a rotary cylindrical drum of expanded metal, 28g covered with flexible sheet screen material, between end plates 26g. The interior of the drum communicates with an outlet pipe having a connection 60 with a fixed suction pipe. Circumferential movement of filtrate within the drum is restricted by a number of (fixed) radial baffles 54 secured to a cone 66g secured in turn to a fixed post 48g supporting, at its upper end, the lower end of the drive shaft 16g. The baffles 54 are cut away at 74 in the region of the filtrate outlet.
Patent GB-231944-A (GB)
Title: Improvements relating to the purification of liquid hydrocarbons
IPC: C10G29/12
Filed: 1924-01-11
Abstract: In the desulphurization of liquid hydrocarbons by treatment with alkaline solutions of hypochlorites, the free alkali content is reduced during or immediately prior to the treatment. Preferably carbon dioxide is passed into the agitated mixture of oil and hypochlorite in quantity sufficient to reduce the content of free caustic soda to zero; but a solution of salt reacting with the free alkali to produce insoluble hydroxides may be used. Ferric chloride and the sulphates of iron, zinc, manganese, and magnesium are stated to be suitable.  In an example, 500 c.c. of oil are stirred with 200 c.. of 0.332 N. sodium hypochlorite containing 0.7 gram of caustic soda per litre.  Sufficient carbon dioxide is then passed in to transform the caustic soda to bicarbonate.
Patent GB-563654-A (GB)
Title: Safety razor blade re-sharpener
IPC: B24D15/08
Filed: 1943-01-18
Abstract: 563,654. Razor sharpeners. ELLIOTT, P. Jan. 18, 1943, No. 887. [Class 60] The blade is sharpened by manually-operated rollers mounted at the ends of a frame fitted with a central cross-member furnished with studs for engaging the holes in the blade which is held in operative position by the fingers. The rollers 4 may be fitted with operating discs 8, the blade being pressed on to the studs 2 on the cross-piece 1. The rollers may be fitted with cog-wheels, or with extended shafts for operation.